Which of the following would cause blood pressure to decrease?

Questions 45

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100 Questions on the Cardiovascular System PDF Questions

Question 1 of 5

Which of the following would cause blood pressure to decrease?

Correct Answer: D

Rationale: Atrial natriuretic factor (ANF) promotes vasodilation and sodium excretion, reducing blood volume and thus lowering blood pressure. The other options increase blood pressure.

Question 2 of 5

Which of the following correctly lists the sequence of structures that a cardiac action potential follows in order to excite normal contraction of the heart?

Correct Answer: D

Rationale: The correct pathway is: SA node→ AV node→ Bundle of His→ Purkinje fibers, ensuring sequential depolarization and contraction of the heart chambers.

Question 3 of 5

Large arteries in the cranial cavity are called sinuses.

Correct Answer: B

Rationale: Sinuses in the cranial cavity refer to venous sinuses, not arteries; large arteries are not called sinuses.

Question 4 of 5

The saclike structure around the heart is the:

Correct Answer: D

Rationale: The pericardium is the sac enclosing the heart, protecting and lubricating it.

Question 5 of 5

The kidney is supplied by this artery.

Correct Answer: B

Rationale: The renal artery supplies the kidney; the suprarenal artery supplies the adrenal glands.

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